Cornerback Jacob Lacey out indefinitely after thumb surgery

As the Vikings look to solidify their depth chart at slot corner, one player in the thick of the competition will be sidelined for a while. Fifth-year veteran Jacob Lacey underwent surgery Wednesday in the Twin Cities to repair a dislocated thumb, an injury he suffered during Tuesday's Organized Team Activities.

The Vikings signed Lacey to a one-year deal in April, reuniting the cornerback with defensive coordinator Alan Williams, under whom he had played from 2009-2011 in Indianapolis. The addition of Lacey gave the Vikings' defense another option as they look for a slot corner to replace Antoine Winfield.

Josh Robinson, entering his second season, remains the frontrunner for that slot job. Robinson will compete with first-round pick Xavier Rhodes to secure a starting spot at outside corner. But through the first two weeks of OTAs, the Vikings first-unit nickel defense has featured Chris Cook and Rhodes outside with Robinson in the slot.

Lacey had been taking the reps as the No. 2 nickel corner before his thumb injury. During Wednesday's OTA workout, second-year corner Bobby Felder took many of the reps in that back-up role in the slot.